摘要
对现有的前向纠错(FEC)编码技术提议了一种基于交织连续型级联码的改进方案。仿真结果分析表明:具有交织的连续型级联码RS(255,239)+RS(255,239)和RS(255,239)+RS(255,223)是两种纠错性能优良、冗余度适中、易于实现的码型,在误码率为10-12时,它们的净编码增益(NCG)比RS(255,239)码分别大2dB～3dB,因而它们更适用于高速长距离光通信系统。最后,探讨了该新型级联码的帧结构安排,为其硬件的设计打下了一个坚实的基础。
A novel scheme based on the consecutive concatenated-codes with interleaving to ameliorate the current Forward Error Correction （FEC） coding technologies for optical communication systems are proposed. The analyses of the simulation results show that the two con- secutive concatenated code type with interleaving of the RS （255,239）＋RS （255,239） code and the RS（255,239） ＋RS （255,223） code are a superior coding scheme with the advantages such as the better error correction, moderate redundancy and easy realization compared to the classic RS （255,239） code and other codes, and their net coding gain （NCG） are respectively 2dB -3dB more than that of the RS （255,239）code at the Bit Error Rate （BER） of 10-12. Therefore, they can better be used in high-speed long-haul optical communication systems. Finally, the arrangement of the frame structure for the novel consecutive concatenated code is probed to lay a firm foundation in designing its hardware.
出处
《光通信技术》
CSCD
北大核心
2006年第10期52-54,共3页
Optical Communication Technology
基金
国家863计划项目(2005AA123730)资助
重庆邮电大学自然科学基金项目(A2006-53)资助。
